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Almost 99% of earths atmosphere is made up of two gases. What are the two gases and the percents of each? A) 21% oxygen and 78% nitrogen B) 21% water vapor and 78% oxygen C) 21% nitrogen and 78% oxygen
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Almost 99% of earths atmosphere is made up of two gases. What are the two gases and the percents of each?

A) 21% oxygen and 78% nitrogen

B) 21% water vapor and 78% oxygen

C) 21% nitrogen and 78% oxygen

D) 21% carbon dioxide and 78% oxygen




Pls help me!!

Almost 99% of earths atmosphere is made up of two gases. What are the two gases and-example-1
User Jeremyjjbrown
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2 Answers

7 votes
The Answer Is A 21% oxygen and 78%nitrogen
User Maulin
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6 votes
The correct answer id A i just did the test

User Keval Patel
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